Finding the Fourth Proportional to 1,669.57, 2,303.94 and 923.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,669.57 : 2,303.94 = 923.49 : x
2. Step 2: Convert to fraction form
   1,669.57/2,303.94 = 923.49/x
3. Step 3: Cross multiply
   1,669.57x = 2,303.94 × 923.49
4. Step 4: Simplify right side
   1,669.57x = 2,127,665.55
5. Step 5: Solve for x
   x = 2,127,665.55/1,669.57
6. Step 6: Final answer
   x = 1,274.38